| Index | Sardis | Tennessee | National |
| Average Test Scores | n/a | 35% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | n/a | 1,390 | 79,221 |
| Total private schools | n/a | 430 | 24,874 |
| Total post-secondary schools | n/a | 189 | 7,963 |
| Index | Sardis | Tennessee | National |
| Completed 8th grade | 73.4% | 82.0% | 84.3% |
| Completed high school | 71.2% | 79.9% | 83.0% |
| Completed some college | 27.0% | 53.2% | 59.4% |
| Completed associate degree | 12.9% | 32.2% | 38.5% |
| Completed bachelors | 11.6% | 25.4% | 30.3% |
| Completed masters | 5.3% | 9.3% | 11.5% |
| Completed professional degree | 0.0% | 2.8% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Sardis. Using the proficiency score averages, the average test scores for Sardis, TN schools is n/a. The average student to teacher ratio is n/a. In Sardis, TN, an average of 73.4% of students have completed 8th grade and an average of 71.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Scotts Hill, TN | 1,320 | 51% | 5.2% |
| Decaturville, TN | 947 | 46% | 4.7% |
| Parsons, TN | 2,585 | 41% | 14.6% |
| Lexington, TN | 7,838 | 40% | 16.5% |
| Adamsville, TN | 2,120 | 35% | 26.4% |
| Sardis, TN | 366 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Brewster, KS | 366 | 38% | 21.9% |
| Nehalem, OR | 366 | 45% | 7.3% |
| Lore City, OH | 366 | 64% | 33.7% |
| Calamus, IA | 366 | 70% | 44.8% |
| Clarksburg, CA | 366 | 44% | 9.0% |
| Sardis, TN | 366 | n/a |
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